Abstract: A harborage for growing and harvesting insects includes a substrate and a mesh material. The substrate has first and second edges extending along the length of the substrate and separated by a shorter width. The substrate includes an absorbent material and is formed into at least one channel extending in a direction along the length of the substrate, in some cases such that the channel is perpendicular to the width and has a depth that is less than the width of the substrate. The mesh material is disposed on the substrate, extends along substantially all of the length of the substrate and includes openings that are smaller than juveniles of a target insect, but sufficiently large to permit liquid feeding of the target insect through the mesh material, which is affixed along the substrate so as to prevent insect egress.